Good morning! We had a few tough questions in Tightrope this week, and the one below proved to the be the toughest. Here's a hint: even if you've never heard of "Tarquin," there's an additional clue in the question that might help you get to the answer. And if you want to check, scroll to the bottom of this email!
According to tradition, which of the following was established in 509 BCE with the overthrow of the Etruscan king Tarquin?
Han Dynasty
Babylonian Empire
Roman Republic
Sparta